Transfer imaging using metal-azo and metal-azomethine dyes

Details Transfer imaging using metal-azo and metal-azomethine dyes Transfer imaging using metal-azo and metal-azomethine dyes

D - Textiles, Paper

06

Q

D06Q 1/12 (2006.01) B41M 5/035 (2006.01) C09B 45/14 (2006.01) C09B 45/16 (2006.01) C09B 45/22 (2006.01) C09B 55/00 (2006.01) C09B 69/10 (2006.01) D06P 5/00 (2006.01)

Patent

CA 2060671

ABSTRACT OF THE DISCLOSURE Dye donor sheets comprising a substrate having a coating comprising a binder and at least one neutral 1:1 metal-azo or neutral 1:1 metal-azomethine dye having the general structure: Image wherein Z1 and Z2 each independently represent an arene nucleus, having from 5 to 14 ring atoms; G1 and G2 each independently represent a metal ligating group, and further wherein G1 and G2 may be contained within or pendant from at least one of Z1 and Z2; R represents a hydrogen atom, a halogen atom, an alkyl group, an acylamino group, an alkoxy group, a sulfonamido group, an aryl group, a thiol group, an alkylthio group, an arylthio group, an alkylamino group, an arylamino group, an amino group, an alkoxycarbonyl group, an acyloxy group, a nitro group, a cyano group, a sulfonyl group, a sulfoxyl group, an aryloxy group, a hydroxy group, a thioamido group, a carbamoyl group, a sulfamoyl group, a carboxyl group, a sulfogroup, a formyl group, an acyl group, a ureido group, or aryloxycarbonyl group, a silyl group, a carbonato group, or a sulfoalkoxy group; L is any combination of monodentate, bidentate, or tridentate ligands which satisfy the coordination requirements the metal; X represents nitrogen or a methine (CH) group; M is a divalent or polyvalent transition metal where the coordination number is at least four; and k, m, and n are whole numbers less than or equal to 3. Use of the above constructions in thermal dye transfer imaging is also disclosed.

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